Photon Knife

The Photon Knife is a minimally invasive type of brain surgery
that uses high doses of radiation with pinpoint accuracy to treat
and eradicate intracranial tumors and other abnormalities. North
Cypress Medical Center is one of the few cancer centers in Texas to
offer stereotactic radiosurgery using the Brain Lab System. Since
this procedure is minimally invasive, it is not necessary to shave
the head, incise and retract the scalp or open the skull.